Class 5 Exam > Class 5 Questions > The rocks formed when existing rocks change d...
Start Learning for Free
The rocks formed when existing rocks change due to heat or pressure are
- a)Sedimentary rocks
- b)igneous rocks.
- c)metamorphic rocks.
- d)All of these
Correct answer is option 'C'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
The rocks formed when existing rocks change due to heat or pressure ar...
Answer:
Definition: Rocks formed when existing rocks change due to heat or pressure are called metamorphic rocks.
Explanation:
Metamorphic rocks are formed when existing rocks undergo physical and chemical changes due to heat and pressure. These changes occur deep within the Earth's crust. Here is a detailed explanation of each option:
A: Sedimentary rocks: Sedimentary rocks are formed from the accumulation and lithification of sediments, such as sand, silt, and clay. They are not formed from the changes caused by heat or pressure.
B: Igneous rocks: Igneous rocks are formed from the cooling and solidification of molten magma or lava. They are not formed from the changes caused by heat or pressure.
C: Metamorphic rocks: Metamorphic rocks are formed when existing rocks, either sedimentary or igneous, are subjected to intense heat and pressure. These changes cause the minerals within the rocks to recrystallize, resulting in a new rock with different physical and chemical properties.
D: All of these: This option is incorrect because sedimentary and igneous rocks are not formed from the changes caused by heat or pressure. Only metamorphic rocks are formed in this way.
Therefore, the correct answer is option C: metamorphic rocks.
Definition: Rocks formed when existing rocks change due to heat or pressure are called metamorphic rocks.
Explanation:
Metamorphic rocks are formed when existing rocks undergo physical and chemical changes due to heat and pressure. These changes occur deep within the Earth's crust. Here is a detailed explanation of each option:
A: Sedimentary rocks: Sedimentary rocks are formed from the accumulation and lithification of sediments, such as sand, silt, and clay. They are not formed from the changes caused by heat or pressure.
B: Igneous rocks: Igneous rocks are formed from the cooling and solidification of molten magma or lava. They are not formed from the changes caused by heat or pressure.
C: Metamorphic rocks: Metamorphic rocks are formed when existing rocks, either sedimentary or igneous, are subjected to intense heat and pressure. These changes cause the minerals within the rocks to recrystallize, resulting in a new rock with different physical and chemical properties.
D: All of these: This option is incorrect because sedimentary and igneous rocks are not formed from the changes caused by heat or pressure. Only metamorphic rocks are formed in this way.
Therefore, the correct answer is option C: metamorphic rocks.
Free Test
FREE
| Start Free Test |
Community Answer
The rocks formed when existing rocks change due to heat or pressure ar...
Metamorphic Rocks:
Metamorphic rocks are formed when existing rocks, whether sedimentary or igneous, undergo changes in their mineral composition and texture due to high heat and pressure within the Earth's crust. This process, called metamorphism, transforms the rocks into new types of rocks known as metamorphic rocks.
Formation Process:
- Metamorphic rocks are formed when existing rocks are subjected to intense heat and pressure deep within the Earth's crust.
- The high temperatures and pressures cause the minerals in the rocks to recrystallize and reorganize, resulting in the formation of new minerals and textures.
- This process can occur over long periods of time, often millions of years, as the rocks are buried deep within the Earth's crust.
Examples of Metamorphic Rocks:
- Some common examples of metamorphic rocks include marble, slate, schist, and gneiss.
- Marble is formed from the metamorphism of limestone, while slate is formed from the metamorphism of shale.
- Schist and gneiss are both foliated metamorphic rocks, meaning they have distinct layers or bands of minerals due to the intense pressure during their formation.
Conclusion:
Metamorphic rocks are the result of the transformation of existing rocks under high heat and pressure conditions. These rocks exhibit unique mineral compositions and textures that differ from their original rock forms, making them distinct and valuable in understanding the geological history of the Earth.
Attention Class 5 Students!
To make sure you are not studying endlessly, EduRev has designed Class 5 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 5.
|
Explore Courses for Class 5 exam
|
|
Similar Class 5 Doubts
Top Courses for Class 5View all
The rocks formed when existing rocks change due to heat or pressure area)Sedimentary rocksb)igneous rocks.c)metamorphic rocks.d)All of theseCorrect answer is option 'C'. Can you explain this answer?
Question Description
The rocks formed when existing rocks change due to heat or pressure area)Sedimentary rocksb)igneous rocks.c)metamorphic rocks.d)All of theseCorrect answer is option 'C'. Can you explain this answer? for Class 5 2024 is part of Class 5 preparation. The Question and answers have been prepared according to the Class 5 exam syllabus. Information about The rocks formed when existing rocks change due to heat or pressure area)Sedimentary rocksb)igneous rocks.c)metamorphic rocks.d)All of theseCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 5 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The rocks formed when existing rocks change due to heat or pressure area)Sedimentary rocksb)igneous rocks.c)metamorphic rocks.d)All of theseCorrect answer is option 'C'. Can you explain this answer?.
The rocks formed when existing rocks change due to heat or pressure area)Sedimentary rocksb)igneous rocks.c)metamorphic rocks.d)All of theseCorrect answer is option 'C'. Can you explain this answer? for Class 5 2024 is part of Class 5 preparation. The Question and answers have been prepared according to the Class 5 exam syllabus. Information about The rocks formed when existing rocks change due to heat or pressure area)Sedimentary rocksb)igneous rocks.c)metamorphic rocks.d)All of theseCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 5 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The rocks formed when existing rocks change due to heat or pressure area)Sedimentary rocksb)igneous rocks.c)metamorphic rocks.d)All of theseCorrect answer is option 'C'. Can you explain this answer?.
Solutions for The rocks formed when existing rocks change due to heat or pressure area)Sedimentary rocksb)igneous rocks.c)metamorphic rocks.d)All of theseCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 5.
Download more important topics, notes, lectures and mock test series for Class 5 Exam by signing up for free.
Here you can find the meaning of The rocks formed when existing rocks change due to heat or pressure area)Sedimentary rocksb)igneous rocks.c)metamorphic rocks.d)All of theseCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
The rocks formed when existing rocks change due to heat or pressure area)Sedimentary rocksb)igneous rocks.c)metamorphic rocks.d)All of theseCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for The rocks formed when existing rocks change due to heat or pressure area)Sedimentary rocksb)igneous rocks.c)metamorphic rocks.d)All of theseCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of The rocks formed when existing rocks change due to heat or pressure area)Sedimentary rocksb)igneous rocks.c)metamorphic rocks.d)All of theseCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice The rocks formed when existing rocks change due to heat or pressure area)Sedimentary rocksb)igneous rocks.c)metamorphic rocks.d)All of theseCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice Class 5 tests.
|
|
Explore Courses for Class 5 exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup